and we are brother and sisters and learn together and have fun and making fun of each other in the science fair together. >>reporter: they applied their skills to find way to save their school and livermore valley joint unified school district tens of thousands of dollars in energy cost. something the class 1936 never had to worry about. >> it's maybe steps to take to be different. what you have to do every light switch counts e-for example this lamp is older system. it's about one and a half inches in diameter and uses more energy than newer model. >> they know it best and they can help us out with specific count and information. >>reporter: mroj equity made possible by pg&e innovator pilot program where engineers by duane brought on to board to do an energy ahead it. he was teased with those who know the campus best. >> that measure we identified was about 100,000 kwh annual savings which is 14,000 dollars for the school each year they would save. >>reporter: students were able to identify more than 45 quad lamp. multiple thermostat and old computers outdated and simply sucking up too mu